1. Unit 7. Gemma López Muñoz Profesora: Maria Jose. 6º de primaria. 2011

2. The light. The light It is a form of energy that some objects called light sources issue. The light propagates on line straight line and in all the directions. The reflection of the light is the way change of the beams when they hit against an object. The refraction is the way change of the beams of light when they happen from a way to other one.

3. The not luminous objects. The not luminous objects can be opaque, transparent or revealed. The color of which we see an object is the color of the beam of the light that reflects this object.

4. The magnetism The magnetism. The natural magnets are those that they find in the nature. The artificial magnets are made by the man. The magnets have two poles north pole and south pole. The electrical current is the movement of the electrical load across the objects.

5. The electrical circuits. The electrical circuits. The electrical circuit is a set of elements that they allow to generate, to distribute and to take advantage of the electrical current. The drivers stop to spend the electrical current. The insulating ones do not stop to spend the electrical current.